The world book encyclopedia. The World book encyclopedia.. v. 1. The world book encyclopedia.. v. 2,. B. The world book encyclopedia.. v. 5,. D. The world book encyclopedia.. v. 6,. E. The world book encyclopedia.. v. 7,. F. The world book encyclopedia.. v. 8,. G. The World book encyclopedia. The world book encyclopedia.. v. 12,. L. The world book encyclopedia.. v. 13,. M.